Patent US3589751A successfully refreshed from Google Patents.
US3589751A
Expired / Lapsed
US
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Ceramic-to-metal seal
Assignee: Thales SA
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Filing: 1968-06-21
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Granted: 1971-06-29
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Expires: 1988-06-21
Abstract
Abstract A method for reinforcing seals between a ceramic part and a metal part consisting in forming a hoop built up by one or more layers of particles deposited on one of the parts to be sealed to each other.
Inventors
- 👤 Serge Esnaud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:58
CPC Classifications
C; C04; C04B; C04B37/00; C04B37/02; C04B37/023; C04B2237/00; C04B2237/30; C04B2237/32; C04B2237/34; C04B2237/343; C04B2237/40; C04B2237/405; C04B2237/50; C04B2237/70; C04B2237/704; C04B2237/706; C04B2237/76; C04B2237/765; C04B2237/80; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24372; Y10T428/24421; Y10T428/2443
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
62 words
A method for reinforcing seals between a ceramic part and a metal part comprising the step of forming, prior to the operation of sealing, at least one layer of particles adhering to each other and to at least one of the said parts, for exerting a hooping action which prevents the normal thermal expansion thereof in both the longitudinal and circumferential directions.
Claim 2
Independent Claim
62 words
A method for reinforcing seals between a ceramic part and a metal part comprising the step of forming, prior to the operation of sealing, at least one layer of particles adhering to each other and to at least one of the said parts, for exerting a hooping action which prevents the normal thermal expansion thereof in both the longitudinal and circumferential directions.
Claim 3
Dependent Claim
13 words
A method as claimed in claim 1, wherein said particles are metal particles.
Claim 4
Dependent Claim
13 words
A method as claimed in claim 1, wherein said particles are ceramic particles.
Claim 5
Dependent Claim
17 words
A method as claimed in claim 1, wherein said particles are deposited by means of a torch.
Claim 6
Dependent Claim
28 words
A method as claimed in claim 1, wherein there are a plurality of said layers, the particles forming at least two of said layers being of different natures.
Claim 7
Dependent Claim
52 words
An assembly of a ceramic part and a metal part sealed to each other comprising a hooping element on one of said parts, said hooping element comprising at least one layer of particles preventing the normal thermal expansion of said one part said particles adhering to each other and to said part.
Claim 8
Dependent Claim
52 words
An assembly of a ceramic part and a metal part sealed to each other comprising a hooping element on one of said parts, said hooping element comprising at least one layer of particles preventing the normal thermal expansion of said one part said particles adhering to each other and to said part.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |